Yep! I don't know.
There isn't too much being said about where you're encrypting and whatnot.
If you're talking about the service encrypting it, I'd switch to a service like Protonmail.
If you're talking about encrypting it on your computer, you'd be better off just using full-disk encryption.
If you're talking about encrypting just one folder in your email account, I have no clue what to suggest.